package com.itheima.reggie.web;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.service.impl.CategoryServiceImpl;
import com.itheima.reggie.service.impl.DishFlavorServiceImpl;
import com.itheima.reggie.service.impl.DishServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */
@Slf4j
@RestController
@RequestMapping("/dish")
public class DishController {
    @Autowired
    private DishServiceImpl dishService;
    @Autowired
    private DishFlavorServiceImpl dishFlavorService;
    @Autowired
    private CategoryServiceImpl categoryService;

    /**
     * 分页+条件查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> pageR(Integer page, Integer pageSize, String name) {
        //创建分页构造器
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        //创建条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null && name != "", Dish::getName, name);
        //设置排序规则
        queryWrapper.orderByDesc(Dish::getUpdateTime);
        dishService.page(pageInfo, queryWrapper);
        //对象拷贝
        BeanUtils.copyProperties(pageInfo, dishDtoPage, "records");
        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item, dishDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());
        dishDtoPage.setRecords(list);
        return R.success(dishDtoPage);

    }


    /**
     * 批量删除菜品
     *
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> deleteById(@RequestParam List<Long> ids) {
        log.info("删除菜品id{}", ids);
        dishService.removeByIds(ids);
        return R.success("删除菜品成功");
    }

    /**
     * 新增菜品
     *
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> addDish(@RequestBody DishDto dishDto) {
        log.info(dishDto.toString());
        dishService.saveWithFlavor(dishDto);
        return R.success("新增菜品成功");
    }

    /**
     * 根据id查询菜品信息及菜品所对应的口味信息
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> selectDish(@PathVariable Long id) {
        //调用业务层 中的查询菜品信息及口味的方法
        DishDto dishDto = dishService.getByIdWithFlavor(id);
        return R.success(dishDto);
    }

    /**
     * 修改菜品
     *
     * @return
     */
    @PutMapping
    public R<String> updateDish(@RequestBody DishDto dishDto) {
        dishService.updateWithFlavor(dishDto);
        return R.success("修改菜品信息成功");
    }

    /**
     * 根据条件查询对应的菜品数据
     * @param dish
     * @return
     */
    /*@GetMapping("/list")
    public R<List<Dish>> list(Dish dish){
        //创建条件构造
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        //添加条件，查询状态为1（起售状态）的菜品
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序规则
        queryWrapper.orderByDesc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        List<Dish> list = dishService.list(queryWrapper);
        return R.success(list) ;
    }*/
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){
        //创建条件构造
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        //添加条件，查询状态为1（起售状态）的菜品
        queryWrapper.eq(Dish::getStatus,1);
        //添加排序规则
        queryWrapper.orderByDesc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        List<Dish> list = dishService.list(queryWrapper);
        List<DishDto> dishDtoList = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item, dishDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            //菜品id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> wrapper = new LambdaQueryWrapper<>();
            wrapper.eq(DishFlavor::getDishId,dishId);
            List<DishFlavor> flavorList = dishFlavorService.list(wrapper);
            dishDto.setFlavors(flavorList);
            return dishDto;
        }).collect(Collectors.toList());

        return R.success(dishDtoList) ;
    }
}
